And then under the “External Devices” tab, click “Add…” to add a new keyboard.

On the midi device menu on the left, choose “New Keyboard”. In the “Receive From” drop-down menu, select either “from ITVL 1” or “from ITVL 2” as midi in port, also select the appropriate midi channel.

Select the “New Keyboard” we just configured in the midi in menu of the track and that’s it!